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Note 10 - Subordinated Debentures - Summary of Mandatory Redeemable Trust Preferred Securities (Details) - Center Bancorp Statutory Trust II [Member] - USD ($)		12 Months Ended
	Jul. 03, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 19, 2003
Securities issued		$ 5,000,000
Subordinated Debt [Member]
Securities issued		$ 5,000,000	$ 5,000,000,000	$ 5,000,000
Liquidation value (in dollars per share)		$ 1,000	$ 1,000
Maturity		Jan. 23, 2034	Jan. 23, 2034
Redeemable by issuer beginning		Jan. 23, 2009	Jan. 23, 2009
Subordinated Debt [Member] | Tenor Spread Adjustment [Member]
Coupon rate	0.26161%	0.26161%
Subordinated Debt [Member] | Secured Overnight Financing Rate (SOFR) [Member]
Coupon rate	2.85%	2.85%	2.85%

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Earliest date when the debt instrument can be converted into equity, in YYYY-MM-DD format.

+ References

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- Definition

Per share excess of preference in liquidation over convertible debt instrument's if-converted par or stated value of share.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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